-import Constants from '../utils/Constants';
-import { WorkerData } from '../types/Worker';
+import type { EventEmitterAsyncResource } from 'node:events'
+import { existsSync } from 'node:fs'
-export default abstract class WorkerAbstract {
- protected readonly workerScript: string;
- protected readonly workerStartDelay: number;
- public abstract size: number;
- public abstract maxElementsPerWorker: number | null;
+import type { PoolInfo } from 'poolifier'
+
+import type { SetInfo, WorkerData, WorkerOptions } from './WorkerTypes.js'
+
+export abstract class WorkerAbstract<D extends WorkerData, R extends WorkerData> {
+ protected readonly workerScript: string
+ protected readonly workerOptions: WorkerOptions
+ public abstract readonly info: PoolInfo | SetInfo
+ public abstract readonly size: number
+ public abstract readonly maxElementsPerWorker: number | undefined
+ public abstract readonly emitter: EventEmitterAsyncResource | undefined
/**
* `WorkerAbstract` constructor.
*
- * @param {string} workerScript
- * @param {number} workerStartDelay
+ * @param workerScript -
+ * @param workerOptions -
*/
- constructor(workerScript: string, workerStartDelay: number = Constants.WORKER_START_DELAY) {
- this.workerScript = workerScript;
- this.workerStartDelay = workerStartDelay;
+ constructor (workerScript: string | undefined, workerOptions: WorkerOptions) {
+ if (workerScript == null) {
+ throw new TypeError('Worker script is not defined')
+ }
+ if (typeof workerScript !== 'string') {
+ throw new TypeError('Worker script must be a string')
+ }
+ if (workerScript.trim().length === 0) {
+ throw new Error('Worker script is an empty string')
+ }
+ if (!existsSync(workerScript)) {
+ throw new Error('Worker script file does not exist')
+ }
+ this.workerScript = workerScript
+ this.workerOptions = workerOptions
}
- public abstract start(): Promise<void>;
- public abstract stop(): Promise<void>;
- public abstract addElement(elementData: WorkerData): Promise<void>;
+ /**
+ * Starts the worker pool/set.
+ */
+ public abstract start (): void | Promise<void>
+ /**
+ * Stops the worker pool/set.
+ */
+ public abstract stop (): Promise<void>
+ /**
+ * Adds a task element to the worker pool/set.
+ *
+ * @param elementData -
+ */
+ public abstract addElement (elementData: D): Promise<R>
}